Grain and seed huller.



No 866,100. I PATENTED SEPT. 17, 1907. J. B. WATKINS.

, GRAIN AND SEED HULLBR.

APPLICATION IILED 0OT.4, 1906.

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No. 866,100. L PATENTED SEPT. 17, 1907.

J. B. WATKINS.

- GRAIN AND SEED HULLER.

APPLICATION FILED 00124. 1906.

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PATENTED SEPT. 17, 1907. B. WATKINS.. GRAIN AND SEED HULLEIL,

APPLICATION FILED 00124.19061.

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JOHN B. WATKINS, OF ST. LOUIS, MISSOURI.

GRAIN AND SEED HULLER.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed October 4, 1906. Serial No. 337,489.

To all whom it may concern:

Be it known that I, JonN B. WATKINS, a citizen of the United States, andresident of St. Louis, Missouri, have invented. certain new and usefulImprovements in Grain and Seed I'Iullers, of which the following is aspecification.

This invention relates to improvements in grain and seed hullers, andconsists in the novel arrangement, construction and combination of partsas will be fully hereinafter described and claimed.

The object of my invention is to construct a device to hull grains andseeds such as corn, wheat, cotton seed and the like by pressing it in acylinder and agitating the contents by a right and left hand conveyor.

A further object of my invention is to provide a conveyer mechanismwhereby the grains and seeds are conveyed to a certain location by acylinder and then discharged through an opening when under a certaindegree of pressure.

In the drawings: Figure 1 is a top plan view of my complete invention.Fig. 2 is a vertical, central, sectional view of the same. Fig. 3 is avertical, crosssectional view taken on the line 3-3 of Fig. 1. Fig. 41-is a vertical, cross-sectional view taken on the line 4-4 of Fig. 2.Fig. 5 is an enlarged, detail cross-sectional view of the sleeve withwhich the grain or seed contacts during the action of hulling. Fig. 6 isa vertical, cross-sectional view showing the manner in which thecylinder is retained in position upon the supporting frame. Fig. 7 is adetail end view of the agitator cone made use of in carrying out myinvention. Fig. 8 is a plan view of the same.

In the construction of my invention I provide a suitable frameconsisting of base sections 9, uprights 10, 1]. and 12, cross bars 13,14 and 15, and horizontal supporting bars 16. Upon the cross bars 13,14. and 15 are mounted journal-bearings 17 in which is revolubly mounteda shaft 18. Upon said shaft 18 and located between the two forwardbearings 17 is a pulley 19 by which the shaft is revolved.

To the horizontal supporting bars 16 I secure a pair of cylindersupporting bars 20, the center of each is provided with a semi-circularrecess to receive the ends of the cylinder 21. The cylinder 21 isconstructed in halves which are each provided with projecting flanges 22by which the said cylinder is retained in rigid position upon thesupporting bars 20 by bolts or lag screws 23. The said cylinder 21 isalso composed of two sections 24 and 25 and to the inner ends of saidsections is attached the sleeve 26 which is also constructed in halves,the inner surface of the upper half being provided with corrugations orteeth 27 and the lower half being provided with corrugations or teeth28, and a series of discharge openings 29. The

. corrugations or teeth 28 on the lower half are inclined in an oppositedirection to the corrugations or teeth in the upper half. The object ofthis is to remove every particle of hull from the seed or grain whilecontacting with the surface of the sleeve. The sleeve 26 is held inposition against the ends of the sections 24 and 25 of the cylinder bythe projecting flanges 30.

The purpose of constructing the sleeve in halves and separate from theremaining portion of the cylinder is to be' able to readily remove thesleeve from the cylinder to replace the same after it has become worn.

On the shaft 18 and within the cylinder 211 provide conveyers 31 and 32,the conveyor 31 being a right hand screw and the conveyor 32 a left handscrew. Upon said shaft and between the conveyor 31 and 32 I provide thedouble cone 33 and at the apex of each cone is located a spider 34 towhich are connected agitating arms 35 which project from the ends of thespider to the base of each cone, and are arranged at an angle oppositeto the right hand conveyor, the object of this being to retain the seedor grain Within that portion of the cylinder occupied by the corrugatedsleeve,and the tendency of the cone is to force the grain or seedagainst the roughened surface of the sleeve and the tendency of theagitators is to agitate the grain while in this operation. The use ofthe left hand conveyor 32 is to prevent the grain or seed from lodgingwithin that end of the cylinder in which the conveyor is located, andthis conveyor acts as a rctarder head compressing the grain or seedbetween the two conveyers until the said grain or seed receives acertain degree of pressure; then the hulled material will pass outthrough the opening 36 formed in the sleeve by automatically opening thedoor 3'7 which is provided with a regulating weight 38 acting the sameas a safety valve, and permitting the material to escape only when undera certain degree of pressure. The smaller particles of hull arepermitted to pass out through the openings 29 formed in the lower halfof the sleeve, thus allowing the seed or grain after being hulled topass out through the opening 36.

Beneath the cylinder and supported to the frame I provide a chute 39which catches the material and delivers it to any suitable receptacleplaced thereunder. The material is admitted into the cylinder throughthe hopper 40 located on the forward upper end of the cylinder, and isfed therein in any desired manner.

Referring to the cones made use of in carrying out my invention Iprovide elongated slots in the spider and in the base of the cones inwhich the agitators are supported. The purpose of the slots is to permitthe agitators to be adjusted within the cylinder so as to acquire theproper result in bringing the seed or grain in contact with the innersurface of the sleeve.

I may if desired arrange my cylinder in vertical form depending upon thelocation of the building in which it is placed.

Having fully described my invention, what I claim is:

1. A device of the class described comprising a cylinder formed of twosections, a sleeve located between said sections, the inner peripherybeing provided with teeth or corrugations, the said sleeve provided withan outlet, and a plurality of discharge openings, a valve covering theoutlet and provided with a Weight for regulating the tension of thevalve against the sleeve, a right and left hand eonveyer mounted withinthe cylinder, a cone located upon the shaft between the right and lefthand conveyer to compress the material against the inner periphery ofthe sleeve between the right and left hand conveyor, and discharge thesame through the discharge opening under a certain degree of pressure,substantially as specified.

2. A device of the class described comprising a cylindermounted upon aframe, a conveyer revolubly mounted with in said cylinder, a retarderhead located at one end of the cylinder, cones located within thecylinder, agitators carried by the cones, the said cones and agitatorslocated between the conveyor and retarder head, and a sleeve having aroughened inner surface carried by the cylinder with which the materialis to be brought in contact to be hulled, and discharged through thedischarge opening under pressure, substantially as specified.

In testimony whereof, I have signed my name to this specification, inpresence of two subscribing witnesses.

JOHN B. WATKINS.

Witnesses W. C. ESSMUELLER, ALFRED A. EICKS.

